document.write( "Question 620665: Y varies directly with X;
\n" ); document.write( "Y=3150 when X=0.4
\n" ); document.write( "Find the constant variation
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Algebra.Com's Answer #390318 by nerdybill(7384)\"\" \"About 
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Y varies directly with X;
\n" ); document.write( "Y=3150 when X=0.4
\n" ); document.write( "Find the constant variation
\n" ); document.write( ".
\n" ); document.write( "When you see \"varies directly\" think:
\n" ); document.write( "y = kx
\n" ); document.write( "substitute the given values for y and x to find k:
\n" ); document.write( "3150 = k(0.4)
\n" ); document.write( "3150/(0.4) = k
\n" ); document.write( "7875 = k
\n" ); document.write( ".
\n" ); document.write( "answer: \"constant variation\" is 7875
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